SIM card
Subscriber Identity Module (SIM) card. A card that securely stores information your carrier uses to
authenticate your phone on the cellular network.
software update
An update to your phone's operating system that typically includes new features and fixes reported
problems. The update is wirelessly downloaded to your phone at no additional cost to you.
status bar
Thin bar at the top of your home screen that displays the time and icons that tell you about your phone's
battery and network connections. Apps display icons in the status bar to alert you of events, such as new
messages.
sync
The process of sharing the same information across multiple devices and websites. Contacts, calendars and
email are often synced through cloud services, so you can enter information on one device and access it
through another.
widget
An element you can add to your home screen that gives you quick access to information or frequent tasks.
For example, widgets can provide weather updates, upcoming calendar events. Many are preinstalled on
your phone. Apps you download may also include widgets.
Wi‑Fi
A short-range wireless technology that provides a high-speed internet connection to wireless data devices.
Many locations offer Wi-Fi connections, including airports, hotels, restaurants and more. Using a Wi-Fi
connection instead of your cellular network can help reduce your cellular data usage. Some public Wi-Fi
connections may not be secure. You should only connect to those you trust and use some form of internet
security on your devices. Set up Wi-Fi.
Certain features, services, and applications are network or carrier dependent and may not be available in all
areas.
Learn the basics : New to Android? 27
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